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Material Overview
What is PPS GF40?
PPS GF40 is a 40% glass-fiber-reinforced grade of polyphenylene sulfide (PPS), engineered for applications that demand the absolute maximum in stiffness, creep resistance, and dimensional stability while retaining PPS's inherent resistance to chemicals, fuels, and elevated temperatures. The heavy glass loading transforms an already high-performance polymer into one of the stiffest thermoplastic compounds available.
PPS GF40 contains 40% glass fiber reinforcement, delivering outstanding rigidity and dimensional stability even at elevated temperatures. This combination of extreme stiffness, low thermal expansion, and chemical resistance makes it a primary choice for structural components that must hold tight geometry in harsh chemical environments under sustained mechanical load.
Typical applications include heavy-duty pump housings, structural valve bodies, chemical processing brackets and fixtures, and precision components in automotive and industrial equipment that must withstand both chemical attack and high mechanical loads simultaneously.
For applications where toughness is more important than maximum stiffness, see unfilled PPS. Contact Ready Plastics for available PPS GF40 dimensions and to request a quote.
Frequently Asked Questions
PPS GF40, answered
What is PPS GF40?
PPS GF40 is polyphenylene sulfide reinforced with 40% glass fiber, delivering exceptional stiffness, reduced creep, and outstanding dimensional stability while retaining the base PPS resin's chemical and thermal resistance. It is one of the stiffest thermoplastic compounds available for structural applications in harsh environments.
When should I choose PPS GF40 instead of unfilled PPS?
Choose PPS GF40 when maximum structural rigidity, minimal deflection under load, or resistance to creep at elevated temperature is required. Unfilled PPS is preferred when toughness, impact resistance, or easier machinability matter more.
Does PPS GF40 retain PPS's chemical resistance?
Yes. The 40% glass fiber content reinforces the PPS matrix but does not degrade its resistance to chemicals, fuels, and solvents. PPS GF40 remains highly inert to most organic chemicals, oils, and industrial fluids.
What shapes does Ready Plastics stock in PPS GF40?
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